11:00 AM - 1:00 PM
[ACG33-P05] Remote influence of the interannual variability of the Australian summer monsoon on wintertime climate in East Asia and the western North Pacific
The mechanisms for this cross-equatorial teleconnection are investigated based on observational data and numerical experiments. The WP-like circulation anomalies are excited by the propagation of stationary Rossby waves generated by upper-level divergent wind anomalies from the Southern Hemisphere that extends into the Asian jet. The climatological Hadley cell has an essential role in this process. Anomalous diabatic heating over East Asia and feedback forcing by transient eddies along the Pacific stormtrack act to further amplify the WP-like response.